FR2292253A1 - Procede et dispositif utilisant un effet thermo-optique dans un cristal liquide pour la reproduction d'images en temps reel et sans memoire - Google Patents

Procede et dispositif utilisant un effet thermo-optique dans un cristal liquide pour la reproduction d'images en temps reel et sans memoire

Info

Publication number
FR2292253A1
FR2292253A1 FR7438281A FR7438281A FR2292253A1 FR 2292253 A1 FR2292253 A1 FR 2292253A1 FR 7438281 A FR7438281 A FR 7438281A FR 7438281 A FR7438281 A FR 7438281A FR 2292253 A1 FR2292253 A1 FR 2292253A1
Authority
FR
France
Prior art keywords
thermo
reproduction
images
memory
liquid crystal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7438281A
Other languages
English (en)
Other versions
FR2292253B1 (fr
Inventor
Michel Hareng
Serge Le Berre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7438281A priority Critical patent/FR2292253A1/fr
Priority to US05/632,955 priority patent/US4099857A/en
Priority to GB47876/75A priority patent/GB1529197A/en
Priority to DE2552338A priority patent/DE2552338C2/de
Priority to JP50140110A priority patent/JPS5854366B2/ja
Publication of FR2292253A1 publication Critical patent/FR2292253A1/fr
Priority to US05/870,526 priority patent/US4334735A/en
Application granted granted Critical
Publication of FR2292253B1 publication Critical patent/FR2292253B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13731—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Transforming Electric Information Into Light Information (AREA)
FR7438281A 1974-11-21 1974-11-21 Procede et dispositif utilisant un effet thermo-optique dans un cristal liquide pour la reproduction d'images en temps reel et sans memoire Granted FR2292253A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7438281A FR2292253A1 (fr) 1974-11-21 1974-11-21 Procede et dispositif utilisant un effet thermo-optique dans un cristal liquide pour la reproduction d'images en temps reel et sans memoire
US05/632,955 US4099857A (en) 1974-11-21 1975-11-18 Thermo-optic liquid-crystal device for real-time display of animated images
GB47876/75A GB1529197A (en) 1974-11-21 1975-11-20 Thermo-optic liquid-crystal device for real-time display of animated images
DE2552338A DE2552338C2 (de) 1974-11-21 1975-11-21 Verfahren und Vorrichtung zur Umwandlung eines Videosignals in eine Bildfolge
JP50140110A JPS5854366B2 (ja) 1974-11-21 1975-11-21 ゾウサイセイホウホウオヨビソウチ
US05/870,526 US4334735A (en) 1974-11-21 1978-01-18 Thermo-optic liquid-crystal device for real-time display of animated images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438281A FR2292253A1 (fr) 1974-11-21 1974-11-21 Procede et dispositif utilisant un effet thermo-optique dans un cristal liquide pour la reproduction d'images en temps reel et sans memoire

Publications (2)

Publication Number Publication Date
FR2292253A1 true FR2292253A1 (fr) 1976-06-18
FR2292253B1 FR2292253B1 (fr) 1978-07-21

Family

ID=9145127

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438281A Granted FR2292253A1 (fr) 1974-11-21 1974-11-21 Procede et dispositif utilisant un effet thermo-optique dans un cristal liquide pour la reproduction d'images en temps reel et sans memoire

Country Status (5)

Country Link
US (2) US4099857A (fr)
JP (1) JPS5854366B2 (fr)
DE (1) DE2552338C2 (fr)
FR (1) FR2292253A1 (fr)
GB (1) GB1529197A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000333A1 (fr) * 1977-12-01 1979-06-14 Thomson Csf Procede de telecopie utilisant une cellule a cristal liquide smectique et telecopieur emetteur-recepteur mettant en oeuvre ce procede

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2373076A1 (fr) * 1976-12-03 1978-06-30 Thomson Csf Cellule a cristal liquide
FR2389955B1 (fr) * 1977-05-05 1981-12-04 Thomson Csf
JPS54153053A (en) * 1978-05-22 1979-12-01 Nec Corp Liquid crystal cell and driving method thereof
JPS5522772A (en) * 1978-08-08 1980-02-18 Nec Corp Liquid crystal display device
DE2910571A1 (de) * 1979-03-17 1980-09-25 Aeg Telefunken Kabelwerke Fluessigkristallanzeige
FR2462755A1 (fr) * 1979-07-27 1981-02-13 Thomson Csf Dispositif de visualisation a cristal liquide, et terminal telephonique comportant un tel dispositif
DE2932252A1 (de) * 1979-08-09 1981-02-26 Moto Meter Ag Anzeigevorrichtung mit anzeigefeld, insbesondere fuer kraftfahrzeuge
FR2489564A1 (fr) 1980-09-02 1982-03-05 Thomson Csf Procede et dispositif de visualisation utilisant un effet thermo-optique avec memoire dans une couche mince de cristal liquide disquotique
US4461715A (en) * 1981-04-06 1984-07-24 Minnesota Mining And Manufacturing Company Thermally addressed cholesteric-smectic liquid crystal device and composition
GB2139392B (en) * 1983-05-05 1986-10-22 Standard Telephones Cables Ltd Display device
GB2152691B (en) * 1983-08-12 1986-11-12 Standard Telephones Cables Ltd Infra-red detector
US4585310A (en) * 1983-12-12 1986-04-29 International Business Machines Corporation Alignment layer orientation in raster scan thermally addressed smectic liquid crystal displays
US5026145A (en) * 1987-09-24 1991-06-25 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure apparatus
EP1725909A1 (fr) * 2004-03-16 2006-11-29 MERCK PATENT GmbH Element, affichage et support de modulation de lumiere electro-optique
WO2007017008A1 (fr) * 2005-07-28 2007-02-15 Merck Patent Gmbh Élément de modulation de lumière électro-optique, affichage et medium
US7764324B2 (en) * 2007-01-30 2010-07-27 Radiabeam Technologies, Llc Terahertz camera
JP5403553B2 (ja) * 2010-01-05 2014-01-29 株式会社ジャパンディスプレイ 液晶表示装置及びその駆動方法
US20120188474A1 (en) * 2010-09-01 2012-07-26 Massachusetts Institute Of Technology Thermal imager
WO2016037063A1 (fr) 2014-09-05 2016-03-10 Massachusetts Institute Of Technology Systemes, procedes, et appareil pour l'imagerie thermique sensible

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410999A (en) * 1965-06-29 1968-11-12 Westinghouse Electric Corp Display system utilizing a liquid crystalline material of the cholesteric phase

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637291A (en) * 1970-02-11 1972-01-25 Ncr Co Display device with inherent memory
US3703331A (en) * 1971-11-26 1972-11-21 Rca Corp Liquid crystal display element having storage
US3854793A (en) * 1972-06-27 1974-12-17 Bell Telephone Labor Inc Liquid crystal cells
US3836243A (en) * 1972-06-27 1974-09-17 Bell Telephone Labor Inc Liquid crystal display apparatus
IT965475B (it) * 1972-09-22 1974-01-31 Maltese P Perfezionamento negli schermi per la presentazione di immagini del tipo a cristalli liquidi adatti in particolare per immagini televisive e o dati alfanumerici

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410999A (en) * 1965-06-29 1968-11-12 Westinghouse Electric Corp Display system utilizing a liquid crystalline material of the cholesteric phase

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
*REVUE US "PROCEDINGS OF THE IEEE", VOLUME 61, NO. 7, JUILLET 1973, PAGES 1007-1013, ARTICLE DE D. MAYDAN: "INFRARED LASER ADDRESSING OF MEDIA FOR RECORDING AND DISPLAYING OF HIGH-RESOLUTION GRAPHIC INFORMATION". *
REVUE US "APPLIED PHYSICS LETTERS", VOLUME 22, NO. 3, 1ER FEVRIER 1973, PAGES 111-113, ARTICLE DE F.J. KAHN: "IR-LASER-ADDRESSED THERMO-OPTIC SMECTIC LIQUID-CRYSTAL STORAGE DISPLAYS". *
REVUE US "JOURNAL OF APPLIED PHYSICS", VOLUME 41, NO. 7, JUIN 1970, PAGES 3022-3026, ARTICLE DE R.A. SOREF: "THERMO-OPTIC EFFECTS IN NEMATIC-CHOLESTERIC MIXTURES". *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000333A1 (fr) * 1977-12-01 1979-06-14 Thomson Csf Procede de telecopie utilisant une cellule a cristal liquide smectique et telecopieur emetteur-recepteur mettant en oeuvre ce procede
FR2410924A1 (fr) * 1977-12-01 1979-06-29 Thomson Csf Procede de telecopie utilisant une cellule a cristal liquide smectique et telecopieur emetteur-recepteur mettant en oeuvre ce procede

Also Published As

Publication number Publication date
DE2552338A1 (de) 1976-05-26
JPS5182647A (fr) 1976-07-20
US4099857A (en) 1978-07-11
US4334735A (en) 1982-06-15
FR2292253B1 (fr) 1978-07-21
DE2552338C2 (de) 1984-07-05
JPS5854366B2 (ja) 1983-12-05
GB1529197A (en) 1978-10-18

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